My Friend's Husband (2017)
Original title: 내 친구의 남편
My Friend's Husband is a 2017 Korean-language romance movie directed by Joo Jong-baek, with a running time of 1h 28m. It stars Yoo Yoo, Do Mo-se and Kim Min-joo-II.
Ji-eun was having a hard time because of her different taste in sex with her husband. She talks to So-hyeon next door about this and she suggests and new kind of 'sex therapy'; to switch husbands for a week.